国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數(shù)資料
型號(hào): W741C240
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT Microcontroller(多次可編程4位的微控制器)
中文描述: 4-BIT, MROM, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁(yè)數(shù): 17/40頁(yè)
文件大小: 432K
代理商: W741C240
W741C240
Publication Release Date: May 1999
- 17 -
Revision A1
Port Mode 2 Register (PM2)
The port mode 2 register is organized as a 4-bit binary register (PM2.0 to PM2.3). PM2 can be used
to control the input/output mode of port RB. PM2 is controlled by the MOV PM2, #I instruction. The bit
descriptions are as follows:
PM2
w
w
w
0
1
2
w
3
Note: W means write only.
Bit 0 = 0 RB.0 works as output pin.
Bit 1 = 0 RB.1 works as output pin.
Bit 2 = 0 RB.2 works as output pin.
Bit 3 = 0 RB.3 works as output pin.
After initial reset, port RB is in input mode (PM2 = 1111B).
Bit 0 = 1 RB.0 works as input pin.
Bit 1 = 1 RB.1 works as input pin.
Bit 2 = 1 RB.2 works as input pin.
Bit 3 = 1 RB.3 works as input pin.
Reset Function
The W741C240 is reset either by a power-on reset or by using the external
RES
pin. The initial state
of the W741C240 after the reset function is executed is described below.
Program Counter (PC)
000H
TM1
Reset
MR1, PM0, PAGE, PMF registers
Reset
PM1, PM2 registers
Set (1111B)
PSR0 register
Reset
IEF, HEF, HCF, PEF, EVF, SEF flags
Reset
Timer 1 input clock
F
OSC
MFP output
Low
Input/output ports RA,RB
Input mode
RA & RB ports output type
CMOS type
RC ports pull-high resistors
Disabled
Input clock of the watchdog timer
F
OSC
/1024
LCD display
OFF
Segment output mode
LCD drive output
相關(guān)PDF資料
PDF描述
W741C250 4-BIT Microcontroller(多次可編程4位的微控制器)
W741C260 4-BIT Microcontroller(多次可編程4位的微控制器)
W741E20X 4-BIT FLASH MICROCONTROLLER
W741E260 4-BIT FLASH MICROCONTROLLER
W741L260 4-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W741C250 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
W741C260 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W741E200 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
W741E201 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER
W741E202 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER